The first of fourteen, Leeds 910, 3910UB, new in May 1960, was an AEC 2D2RA Regent V with a Metro Cammell H39/32R body later altered to H38/32R, with the batch 910-923 being altered in August/September 1960. It was seen at the terminus in Thorpe Lane, Middleton of the route thence to Roundhay.